Iso Crunch Knee Tuck with Alternating Toe Touch
Isometric crunch hold combined with knee tucks and toe touches for high core demand.
Core & AbsIntermediateStrengthIsometric
At a glance
| Muscles worked | Primary: abs. Secondary: hip flexors, core |
|---|---|
| Muscle group | Core & Abs |
| Difficulty | Intermediate |
| Type | Strength · Isometric |
| Sets & reps | 3 sets × 8-12 total |
| Estimated calories burned | ~5 kcal |
| Equipment | None needed |
How to do it
- Lie on your back and crunch up into an isometric hold.
- Perform alternating knee tucks while reaching toward the toes.
- Keep the shoulders elevated and core tight.
- Maintain the crunch position throughout.
- Lower with control after the set.
Coaching tips
Benefits
Isometric crunch hold combined with knee tucks and toe touches for high core demand.
Common mistakes
Avoid dropping the shoulders or using momentum.
Make it harder
Increase hold time or slow the touches.
Make it easier
Perform without the toe touch.
Breathing
Breathe steadily during the hold; exhale on the tuck.
Build a workout with this exercise
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Intermediate · 4 sets × 20-40 secondsGeneral fitness and nutrition information, not medical advice. Check with a qualified professional before starting a new exercise or diet plan, especially if you have an injury or health condition.